Magnum FLOW Pro 5R Air Filter aFe POWER Magnum FLOW Pro 5R Air Filter aFe POWER Magnum FLOW Pro 5R Air Filter AFE Spare Dynomotive Magnum FLOW Pro 5R Air Filter w Foam Pre Filter aFe POWER AFE Mustang Magnum FLOW Pro 5R Oiled Replacement Air Filter 30 10121 Magnum FLOW Pro 5R Air Filter aFe POWER. This filter features five layers of pre oiled cotton gauze media to provide maximum performance. Its progressive layering allows the filter to flow at high levels even when dirty, while its inverted top makes for more filter surface area, resulting in longer service intervals. This media is perfect for street and or track use. Pro 5R filters are easily recharged with aFe's POWER CLEANER and blue air filter oil. aFe POWER performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity. This aFe POWER performance air filter is constructed with a polyurethane base and top. Unlike other materials that degrade after repeated heat cycles in an engine bay, polyurethane maintains its original molded shape. Features: Washable and Reusable for Multiple Cleaning Cycles 100% Polyurethane Base and Top for Extra Long Filter Life Pro 5R Filter Media Features Five Layers of Progressive Oiled Cotton Gauze for Maximum Performance Deep, Open Pleats Allow for Increased Surface Area, Flow, and Dust Holding Capacity